/rpython/jit/backend/ppc/runner.py
Python | 91 lines | 58 code | 18 blank | 15 comment | 2 complexity | a35cda6751fbd8adbf9218ba3221beb0 MD5 | raw file
Possible License(s): AGPL-3.0, BSD-3-Clause, Apache-2.0
- from rpython.rtyper.lltypesystem import lltype, llmemory, rffi
- from rpython.rtyper.llinterp import LLInterpreter
- from rpython.rlib import rgc
- from rpython.rlib.jit_hooks import LOOP_RUN_CONTAINER
- from rpython.jit.backend.llsupport.llmodel import AbstractLLCPU
- from rpython.jit.backend.ppc.ppc_assembler import AssemblerPPC
- from rpython.jit.backend.ppc.arch import WORD
- from rpython.jit.backend.ppc.codebuilder import PPCBuilder
- from rpython.jit.backend.ppc import register as r
- class PPC_CPU(AbstractLLCPU):
- supports_floats = True
- # missing: supports_singlefloats
- IS_64_BIT = True
- backend_name = 'ppc64'
- # can an ISA instruction handle a factor to the offset?
- load_supported_factors = (1,)
- from rpython.jit.backend.ppc.register import JITFRAME_FIXED_SIZE
- frame_reg = r.SP
- all_reg_indexes = [-1] * 32
- for _i, _r in enumerate(r.MANAGED_REGS):
- all_reg_indexes[_r.value] = _i
- gen_regs = r.MANAGED_REGS
- float_regs = [None] + r.MANAGED_FP_REGS
- # ^^^^ we leave a never-used hole for f0 in the jitframe
- # for rebuild_faillocs_from_descr(), as a counter-workaround
- # for the reverse hack in ALL_REG_INDEXES
- def __init__(self, rtyper, stats, opts=None, translate_support_code=False,
- gcdescr=None):
- AbstractLLCPU.__init__(self, rtyper, stats, opts,
- translate_support_code, gcdescr)
- def setup(self):
- self.assembler = AssemblerPPC(self)
- @rgc.no_release_gil
- def setup_once(self):
- self.assembler.setup_once()
- @rgc.no_release_gil
- def finish_once(self):
- self.assembler.finish_once()
- def compile_bridge(self, faildescr, inputargs, operations,
- original_loop_token, log=True, logger=None):
- clt = original_loop_token.compiled_loop_token
- clt.compiling_a_bridge()
- return self.assembler.assemble_bridge(faildescr, inputargs, operations,
- original_loop_token, log, logger)
- def cast_ptr_to_int(x):
- adr = llmemory.cast_ptr_to_adr(x)
- return PPC_CPU.cast_adr_to_int(adr)
- cast_ptr_to_int._annspecialcase_ = 'specialize:arglltype(0)'
- cast_ptr_to_int = staticmethod(cast_ptr_to_int)
- def redirect_call_assembler(self, oldlooptoken, newlooptoken):
- self.assembler.redirect_call_assembler(oldlooptoken, newlooptoken)
- def invalidate_loop(self, looptoken):
- """Activate all GUARD_NOT_INVALIDATED in the loop and its attached
- bridges. Before this call, all GUARD_NOT_INVALIDATED do nothing;
- after this call, they all fail. Note that afterwards, if one such
- guard fails often enough, it has a bridge attached to it; it is
- possible then to re-call invalidate_loop() on the same looptoken,
- which must invalidate all newer GUARD_NOT_INVALIDATED, but not the
- old one that already has a bridge attached to it."""
- for jmp, tgt in looptoken.compiled_loop_token.invalidate_positions:
- mc = PPCBuilder()
- mc.b_offset(tgt) # a single instruction
- mc.copy_to_raw_memory(jmp)
- # positions invalidated
- looptoken.compiled_loop_token.invalidate_positions = []
- def get_all_loop_runs(self):
- # not implemented
- return lltype.malloc(LOOP_RUN_CONTAINER, 0)
- def build_regalloc(self):
- ''' for tests'''
- from rpython.jit.backend.ppc.regalloc import Regalloc
- assert self.assembler is not None
- return Regalloc(self.assembler)